HYDRO21160

• Permit No: C1981008
• IBM Index Class Name: Hydrology
• Doc Date: 9/14/1999
• Doc Name: 3RD QUARTER 1999 INSPECTIONS
• From: NEW HORIZON MINE
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
WATER, SEDIMENT, OR SLURRY IMPOUNDMENTS
Inspectors Name: yZa~ ~,~~.~ Date: ~ -~_ q~
NPDE S ID. No.:CO-0000213 005 Date Last Inspected : (,_ ~~_q~
Faci lity Configuration:Side Hill Pond
Site Name: Impoundment #005 Location:97N16W36AD
Mine Name: New Horizon Mine Location:2 mi.NW of Nucla. CO.

Mine ID No.: CMLRD Permit #0008-81
Owne rs Rep.: R. L. Wade. Mine Manager
CIRCLE OR WRITE IN APPROPRIATE R ESPONSE
1. Foundation Preparation (removal of vegetation, stumps., topsoil) Q No N/A
2. Lift thicY,ness !inches) _
3. Compaction according to approved plan ~e No N/A
4. Burning (specify extend and location) Yes ~ T]/A
5. .Angle of slope: 3:1 upstream, ?:1 downstream _
6. Seepage (specify location, color, antl appror.. volume)
a.) From unde rd rain pipes: Yes ~ N/A
b.) At isolated points on embankment slopes: Yes ® N/A
c) At natural hillside: Yes Q,@, N/A
d) Over widespread areas Yes ~, N/A
e) From downsteam foundation area Yes ®, N/A
f) "Boils" beneath stram or pond ed water Yes 0° N/A
7. Cracks or scarps on crest Yes ~dy N/A
8. Cracks o- scraps en slope Yes ~ N/.A
9. Sloughing or bulging on slope Yes ® N/A
10. Major erosion problems Yes ~~ N/A
11. Surface mOVemonts in valley bottom or on hillside Yes ® N/A
12. Erosion of toe Yes ~ N/A
13. Water impounded against toe Yes ~ ® R/A
19. Existing embankment freeboard (feet) t Feet
15. Cracks, bulging, or erosion on upsteam face Yes ® N/A
16. Visible sumps or sin Y.holes in slurry surface Yes ~ N/A
17. Clogging
a) Spillway channels and pipes Yes 1~ N/q
b) Decant system Yes ~o N/A
C1 Diversion Ditches Yes ® N/A
18. Cracking or crushing of pipes
a) Spillway pipes Yes .@, N/A
b) Decant system Yes ® N/A
19. Trash racks clear and in ~ No N/A
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